Home / 11,785.15-17,675.70-4,385.80

Finding the Fourth Proportional to 11,785.15, 17,675.70 and 4,385.80

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Solution

The fourth proportional to 11,785.15, 17,675.70 and 4,385.80 is: 6,577.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,785.15 : 17,675.70 = 4,385.80 : x
  2. Step 2: Convert to fraction form
    11,785.15/17,675.70 = 4,385.80/x
  3. Step 3: Cross multiply
    11,785.15x = 17,675.70 × 4,385.80
  4. Step 4: Simplify right side
    11,785.15x = 77,522,085.06
  5. Step 5: Solve for x
    x = 77,522,085.06/11,785.15
  6. Step 6: Final answer
    x = 6,577.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.